/**
 * Copyright (c) Istituto Nazionale di Fisica Nucleare (INFN). 2006-2016
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.glite.security.voms.admin.persistence;

import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;

import org.glite.security.voms.admin.error.VOMSException;
import org.hibernate.cfg.Configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DBUtil {

  public static Logger log = LoggerFactory.getLogger(DBUtil.class);

  public static Configuration loadHibernateConfiguration(
    String hibernatePropertiesFile) {

    Properties dbProperties = new Properties();

    try {

      dbProperties.load(new FileInputStream(hibernatePropertiesFile));

    } catch (IOException e) {

      log.error("Error loading hibernate properties: " + e.getMessage(), e);

      throw new VOMSException("Error loading hibernate properties: "
        + e.getMessage(), e);
    }

    return new Configuration().addProperties(dbProperties);

  }

  public static Configuration loadHibernateConfiguration(
    String configurationDir, String voName) {

    String f = String.format("%s/%s/%s", configurationDir, voName,
      "database.properties");
    return loadHibernateConfiguration(f);
  }

}